Rock Identifier

Category

Mineral Composite

Browse mineral composite specimens identified by the Rock Identifier community.

Learn about Mineral Composite in the encyclopedia

Glauconite

Hutcheonite

Halite

Sperrylite

Sea Sediment Jasper

Baddeleyite

Anatase

Brookite

Talc

Euxenite

Eltyubyuite

Buergerite

Limonite (often after Pyrite) (Limonite (FeO(OH)·nH2O)) — mineral

Limonite (often after Pyrite)

Limonite (FeO(OH)·nH2O)

Sandstone (Quartzose Sandstone (Sedimentary Rock)) — sedimentary

Sandstone

Quartzose Sandstone (Sedimentary Rock)

Vesicular basalt (scoriaceous basalt) (Basalt, primarily plagioclase, pyroxene, and iron-rich olivine; vesicular variety may be termed scoria) — igneous

Vesicular basalt (scoriaceous basalt)

Basalt, primarily plagioclase, pyroxene, and iron-rich olivine; vesicular variety may be termed scoria

Gneiss (Banded orthogneiss or paragneiss, typically quartz–feldspar–mica bearing) — metamorphic

Gneiss

Banded orthogneiss or paragneiss, typically quartz–feldspar–mica bearing

Turtle Stone / Septarian Nodule (Fragment) (Septarian Concretion (Calcite, Aragonite, and Limestone)) — sedimentary

Turtle Stone / Septarian Nodule (Fragment)

Septarian Concretion (Calcite, Aragonite, and Limestone)

Epidote (Epidote (Ca2(Al, Fe)3(SiO4)3(OH))) — mineral

Epidote

Epidote (Ca2(Al, Fe)3(SiO4)3(OH))

Amygdaloidal Basalt (Amygdaloidal Basalt (Mafic Volcanic Rock)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Vein Quartz in Basalt or Mafic Rock (Silicon Dioxide (Quartz veins in volcanic host rock)) — igneous

Vein Quartz in Basalt or Mafic Rock

Silicon Dioxide (Quartz veins in volcanic host rock)

Conglomerate (or Breccia / Porphyry) (Clastic Sedimentary Rock (Conglomerate / Sandstone)) — sedimentary

Conglomerate (or Breccia / Porphyry)

Clastic Sedimentary Rock (Conglomerate / Sandstone)

Sandstone (Quartz Arenite / Sedimentary Rock) — sedimentary

Sandstone

Quartz Arenite / Sedimentary Rock

Chrysocolla (or Turquoise/Aventurine) (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O) — mineral

Chrysocolla (or Turquoise/Aventurine)

Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz Pebbles (Silicon Dioxide (SiO2)) — mineral

Quartz Pebbles

Silicon Dioxide (SiO2)

Sandstone (Sedimentary Rock (Quartz Arenite)) — sedimentary

Sandstone

Sedimentary Rock (Quartz Arenite)

Sandstone (Arenite (primarily SiO2)) — sedimentary

Sandstone

Arenite (primarily SiO2)

Fluorite (Calcium fluoride (CaF2)) — mineral

Fluorite

Calcium fluoride (CaF2)

Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst) (Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage) — mineral

Inukshuk Rock Sculpture (composed of Granite, Slate, and Amethyst)

Silicon Dioxide (Amethyst portion, SiO2) with mixed silicate rock assemblage

Bumblebee Jasper (Carbonate-rich volcanic rock containing Sulfur and Arsenic (Realgar/Orpiment)) — sedimentary

Bumblebee Jasper

Carbonate-rich volcanic rock containing Sulfur and Arsenic (Realgar/Orpiment)

Schist (Metamorphic Rock (Mica Schist)) — metamorphic

Schist

Metamorphic Rock (Mica Schist)

Gneiss (Gneiss) — metamorphic

Gneiss

Gneiss

K2 stone (azurite–granite) (Biotite granite hosting blue azurite (Cu₃(CO₃)₂(OH)₂), often with malachite and quartz) — igneous

K2 stone (azurite–granite)

Biotite granite hosting blue azurite (Cu₃(CO₃)₂(OH)₂), often with malachite and quartz

Sandstone (Arenite (SiO2 + various cementing minerals)) — sedimentary

Sandstone

Arenite (SiO2 + various cementing minerals)

Amygdaloidal Basalt (Amygdaloidal Basalt (with secondary mineral infilling)) — igneous

Amygdaloidal Basalt

Amygdaloidal Basalt (with secondary mineral infilling)

Emerald in Matrix (Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)) — gemstone

Emerald in Matrix

Beryl (Be3Al2Si6O18 with Chromium/Vanadium traces)

Tumbled quartz-rich stone, possibly blue quartz or granite (Quartz (SiO₂), with probable feldspar and dark accessory minerals) — mineral

Tumbled quartz-rich stone, possibly blue quartz or granite

Quartz (SiO₂), with probable feldspar and dark accessory minerals

Sandstone (Quartz-rich) (Arenite) — sedimentary

Sandstone (Quartz-rich)

Arenite

Botryoidal calcite (likely calcite concretion) (Calcite, calcium carbonate (CaCO₃)) — mineral

Botryoidal calcite (likely calcite concretion)

Calcite, calcium carbonate (CaCO₃)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Rainbow Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Rainbow Fluorite

Fluorite (Calcium Fluoride, CaF2)

Milk Quartz (White Quartz) (Silicon Dioxide (SiO2)) — mineral

Milk Quartz (White Quartz)

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Fluorite (Rainbow Fluorite) (Calcium Fluoride (CaF2)) — Mineral

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Banded Quartz (Silicon Dioxide (SiO2)) — mineral

Banded Quartz

Silicon Dioxide (SiO2)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Vanadinite (Pb5(VO4)3Cl) — mineral

Vanadinite

Pb5(VO4)3Cl

Concretion (Septarian Concretion) — sedimentary

Concretion

Septarian Concretion

Amygdaloidal Basalt (Amygdaloidal Basalt) — Igneous

Amygdaloidal Basalt

Amygdaloidal Basalt

Milky Quartz with Tourmaline and Iron Oxides (Silicon Dioxide (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)) — mineral

Milky Quartz with Tourmaline and Iron Oxides

Silicon Dioxide (SiO2) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Orthoclase Feldspar (Potassium Aluminum Silicate (KAlSi3O8)) — mineral

Orthoclase Feldspar

Potassium Aluminum Silicate (KAlSi3O8)

Limonite (Iron Ore) (FeO(OH)·nH2O) — mineral

Limonite (Iron Ore)

FeO(OH)·nH2O

Magnetite Sand (Black Sand) (Magnetite (Fe3O4)) — mineral

Magnetite Sand (Black Sand)

Magnetite (Fe3O4)

Sandstone (Clastic Sedimentary Rock) — sedimentary

Sandstone

Clastic Sedimentary Rock